Spyware is a software that is purposefully installed in a computer device without the user’s knowledge.It has the ability to collect all the secret informations whether it be a person or a firm or a Organization,it sends the collected informations to other parties.
Spyware is secretly installed through deceptive pop up windows,drive-by download etc.Spyware can also steal ones user name & password,send text messages automatically,place calls,posts annoying ads which can result in severe cyber crime.